Test:335 QNo:28

match the domains with functions for which it is defined

(28) tantan-1x+sinsin-1x+coscos-1x (a) [-1,0]
(29) sin-1cos-1x+cos-1sin-1x (b) [0,Ï€/6]
(30) sintan-1[x/√(1-x2)] (c) [2π/9,5π/18]
(31) sin-1tan-1x (d) [-1,1]

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